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SAE J129

Engine and Transmission Identification Numbers

STANDARD published on 1.3.2024

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The information about the standard:

Designation standards: SAE J129
Publication date standards: 1.3.2024
Country: American technical standard
Category: Technical standards SAE

Annotation of standard text SAE J129 :


This SAE Recommended Practice has been established to provide direction for the design and installation of an identification number (IN) as assigned to vehicle engines, transmissions, and transaxles. The IN is used for tracking or traceability of these components. In adhering to these recommended practices, facility of application in factory production and appearance quality are matters for manufacturer control. Reference SAE J853.

SUBFILE: Automotive
TYPE OF DOCUMENT: Ground Vehicle Standard